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-rw-r--r--drivers/pinctrl/meson/Kconfig1
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c10
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson-gx-pmx.c10
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson.c101
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson.h8
5 files changed, 123 insertions, 7 deletions
diff --git a/drivers/pinctrl/meson/Kconfig b/drivers/pinctrl/meson/Kconfig
index ee820a57a0..162642d728 100644
--- a/drivers/pinctrl/meson/Kconfig
+++ b/drivers/pinctrl/meson/Kconfig
@@ -2,6 +2,7 @@ if ARCH_MESON
config PINCTRL_MESON
select PINCTRL_GENERIC
+ select PINCONF
bool
config PINCTRL_MESON_GX_PMX
diff --git a/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c b/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c
index c82413d08f..f23b188f2f 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c
@@ -93,6 +93,12 @@ static int meson_axg_pinmux_group_set(struct udevice *dev,
return 0;
}
+const struct pinconf_param meson_axg_pinconf_params[] = {
+ { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
+ { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
+ { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
+};
+
const struct pinctrl_ops meson_axg_pinctrl_ops = {
.get_groups_count = meson_pinctrl_get_groups_count,
.get_group_name = meson_pinctrl_get_group_name,
@@ -100,6 +106,10 @@ const struct pinctrl_ops meson_axg_pinctrl_ops = {
.get_function_name = meson_pinmux_get_function_name,
.pinmux_group_set = meson_axg_pinmux_group_set,
.set_state = pinctrl_generic_set_state,
+ .pinconf_params = meson_axg_pinconf_params,
+ .pinconf_num_params = ARRAY_SIZE(meson_axg_pinconf_params),
+ .pinconf_set = meson_pinconf_set,
+ .pinconf_group_set = meson_pinconf_group_set,
};
static int meson_axg_gpio_request(struct udevice *dev,
diff --git a/drivers/pinctrl/meson/pinctrl-meson-gx-pmx.c b/drivers/pinctrl/meson/pinctrl-meson-gx-pmx.c
index fc1538ea71..cf72576b6c 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-gx-pmx.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-gx-pmx.c
@@ -72,6 +72,12 @@ static int meson_gx_pinmux_group_set(struct udevice *dev,
return 0;
}
+const struct pinconf_param meson_gx_pinconf_params[] = {
+ { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
+ { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
+ { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
+};
+
const struct pinctrl_ops meson_gx_pinctrl_ops = {
.get_groups_count = meson_pinctrl_get_groups_count,
.get_group_name = meson_pinctrl_get_group_name,
@@ -79,6 +85,10 @@ const struct pinctrl_ops meson_gx_pinctrl_ops = {
.get_function_name = meson_pinmux_get_function_name,
.pinmux_group_set = meson_gx_pinmux_group_set,
.set_state = pinctrl_generic_set_state,
+ .pinconf_params = meson_gx_pinconf_params,
+ .pinconf_num_params = ARRAY_SIZE(meson_gx_pinconf_params),
+ .pinconf_set = meson_pinconf_set,
+ .pinconf_group_set = meson_pinconf_group_set,
};
static const struct dm_gpio_ops meson_gx_gpio_ops = {
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index b539749752..fa3d78858a 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -57,7 +57,7 @@ static int meson_gpio_calc_reg_and_bit(struct udevice *dev, unsigned int offset,
enum meson_reg_type reg_type,
unsigned int *reg, unsigned int *bit)
{
- struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ struct meson_pinctrl *priv = dev_get_priv(dev);
struct meson_bank *bank = NULL;
struct meson_reg_desc *desc;
unsigned int pin;
@@ -89,7 +89,8 @@ int meson_gpio_get(struct udevice *dev, unsigned int offset)
unsigned int reg, bit;
int ret;
- ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_IN, &reg, &bit);
+ ret = meson_gpio_calc_reg_and_bit(dev->parent, offset, REG_IN, &reg,
+ &bit);
if (ret)
return ret;
@@ -102,7 +103,8 @@ int meson_gpio_set(struct udevice *dev, unsigned int offset, int value)
unsigned int reg, bit;
int ret;
- ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_OUT, &reg, &bit);
+ ret = meson_gpio_calc_reg_and_bit(dev->parent, offset, REG_OUT, &reg,
+ &bit);
if (ret)
return ret;
@@ -117,7 +119,8 @@ int meson_gpio_get_direction(struct udevice *dev, unsigned int offset)
unsigned int reg, bit, val;
int ret;
- ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_DIR, &reg, &bit);
+ ret = meson_gpio_calc_reg_and_bit(dev->parent, offset, REG_DIR, &reg,
+ &bit);
if (ret)
return ret;
@@ -132,7 +135,8 @@ int meson_gpio_direction_input(struct udevice *dev, unsigned int offset)
unsigned int reg, bit;
int ret;
- ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_DIR, &reg, &bit);
+ ret = meson_gpio_calc_reg_and_bit(dev->parent, offset, REG_DIR, &reg,
+ &bit);
if (ret)
return ret;
@@ -148,13 +152,15 @@ int meson_gpio_direction_output(struct udevice *dev,
unsigned int reg, bit;
int ret;
- ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_DIR, &reg, &bit);
+ ret = meson_gpio_calc_reg_and_bit(dev->parent, offset, REG_DIR, &reg,
+ &bit);
if (ret)
return ret;
clrbits_le32(priv->reg_gpio + reg, BIT(bit));
- ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_OUT, &reg, &bit);
+ ret = meson_gpio_calc_reg_and_bit(dev->parent, offset, REG_OUT, &reg,
+ &bit);
if (ret)
return ret;
@@ -163,6 +169,72 @@ int meson_gpio_direction_output(struct udevice *dev,
return 0;
}
+static int meson_pinconf_bias_set(struct udevice *dev, unsigned int pin,
+ unsigned int param)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev);
+ unsigned int offset = pin - priv->data->pin_base;
+ unsigned int reg, bit;
+ int ret;
+
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_PULLEN, &reg, &bit);
+ if (ret)
+ return ret;
+
+ if (param == PIN_CONFIG_BIAS_DISABLE) {
+ clrsetbits_le32(priv->reg_pullen + reg, BIT(bit), 0);
+ return 0;
+ }
+
+ /* othewise, enable the bias and select level */
+ clrsetbits_le32(priv->reg_pullen + reg, BIT(bit), 1);
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_PULL, &reg, &bit);
+ if (ret)
+ return ret;
+
+ clrsetbits_le32(priv->reg_pull + reg, BIT(bit),
+ param == PIN_CONFIG_BIAS_PULL_UP);
+
+ return 0;
+}
+
+int meson_pinconf_set(struct udevice *dev, unsigned int pin,
+ unsigned int param, unsigned int arg)
+{
+ int ret;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ case PIN_CONFIG_BIAS_PULL_UP:
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ ret = meson_pinconf_bias_set(dev, pin, param);
+ break;
+
+ default:
+ dev_err(dev, "unsupported configuration parameter %u\n", param);
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+int meson_pinconf_group_set(struct udevice *dev,
+ unsigned int group_selector,
+ unsigned int param, unsigned int arg)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev);
+ struct meson_pmx_group *grp = &priv->data->groups[group_selector];
+ int i, ret;
+
+ for (i = 0; i < grp->num_pins; i++) {
+ ret = meson_pinconf_set(dev, grp->pins[i], param, arg);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
int meson_gpio_probe(struct udevice *dev)
{
struct meson_pinctrl *priv = dev_get_priv(dev->parent);
@@ -240,6 +312,21 @@ int meson_pinctrl_probe(struct udevice *dev)
return -EINVAL;
}
priv->reg_gpio = (void __iomem *)addr;
+
+ addr = parse_address(gpio, "pull", na, ns);
+ if (addr == FDT_ADDR_T_NONE) {
+ debug("pull address not found\n");
+ return -EINVAL;
+ }
+ priv->reg_pull = (void __iomem *)addr;
+
+ addr = parse_address(gpio, "pull-enable", na, ns);
+ /* Use pull region if pull-enable one is not present */
+ if (addr == FDT_ADDR_T_NONE)
+ priv->reg_pullen = priv->reg_pull;
+ else
+ priv->reg_pullen = (void __iomem *)addr;
+
priv->data = (struct meson_pinctrl_data *)dev_get_driver_data(dev);
/* Lookup GPIO driver */
diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h
index bdee721fc0..28085a7495 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.h
+++ b/drivers/pinctrl/meson/pinctrl-meson.h
@@ -39,6 +39,8 @@ struct meson_pinctrl {
struct meson_pinctrl_data *data;
void __iomem *reg_mux;
void __iomem *reg_gpio;
+ void __iomem *reg_pull;
+ void __iomem *reg_pullen;
};
/**
@@ -130,4 +132,10 @@ int meson_gpio_direction_output(struct udevice *dev, unsigned int offset,
int value);
int meson_gpio_probe(struct udevice *dev);
+int meson_pinconf_set(struct udevice *dev, unsigned int pin,
+ unsigned int param, unsigned int arg);
+int meson_pinconf_group_set(struct udevice *dev,
+ unsigned int group_selector,
+ unsigned int param, unsigned int arg);
+
#endif /* __PINCTRL_MESON_H__ */
generated by cgit (git 2.34.1) at 2024-06-28 19:18:03 +0000